1,720,981 research outputs found
Book Review
Hu, Fang-Shuo, Shaw, Josh Jenkins (2020): Book Review. The Coleopterists Bulletin 74 (3): 536-537, DOI: 10.1649/0010-065X-74.3.536, URL: http://dx.doi.org/10.1649/0010-065x-74.3.53
Review of the rove beetles (Coleoptera: Staphylinidae) from the Pliocene of Willershausen, Germany
The rove beetle fauna (Coleoptera: Staphylinidae) (excluding the subfamily Silphinae) of the Pliocene of Willershausen (Lower Saxony, North Germany) is reviewed based on the type and other material of previously described or reported taxa, as well as two new specimens. Six subfamilies are represented in the deposit, with two subfamilial assignments considered tentative: Aleocharinae?, Micropeplinae, Oxytelinae, Paederinae, Staphylininae? and Tachyporinae. †Pliosyntomium Korge, 1967 syn. nov. is placed as a junior synonym of Paederus Fabricius, 1775. The following new combination is established: †Paederus schmidti (Korge, 1967) comb. nov. All rove beetle fossils from Willershausen housed in the Collections of the Geoscience Museum, University of Göttingen.
A new species of Ecitonides Wasmann, 1894 (Coleoptera: Staphylinidae: Paederinae) from Peru and phylogenetic placement of the genus based on molecular data
Shaw, Josh Jenkins, Rodríguez-Melgarejo, Maryzender, Matsumoto, Keita, Wasel, Sophia, Piper, Ross (2023): A new species of Ecitonides Wasmann, 1894 (Coleoptera: Staphylinidae: Paederinae) from Peru and phylogenetic placement of the genus based on molecular data. Zootaxa 5346 (2): 186-196, DOI: 10.11646/zootaxa.5346.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5346.2.
FIGURE 4. A in A new species of Ecitonides Wasmann, 1894 (Coleoptera: Staphylinidae: Paederinae) from Peru and phylogenetic placement of the genus based on molecular data
FIGURE 4. A. Distribution maps of all species of Ecitonides. B. Surrounding habitat of E. costanceae sp. nov. C. Light sheet at which the E. costanceae sp. nov. was collected.Published as part of Shaw, Josh Jenkins, Rodríguez-Melgarejo, Maryzender, Matsumoto, Keita, Wasel, Sophia & Piper, Ross, 2023, A new species of Ecitonides Wasmann, 1894 (Coleoptera: Staphylinidae: Paederinae) from Peru and phylogenetic placement of the genus based on molecular data, pp. 186-196 in Zootaxa 5346 (2) on page 192, DOI: 10.11646/zootaxa.5346.2.6, http://zenodo.org/record/835468
Hansarsia Shaw, 2023, nom. nov.
Hansarsia nom. nov. Nematoscelis Sars, 1883: 27 [Type species: Nematoscelis megalops G.O. Sars, 1883, by present designation in accordance with Recommendation 69A.10 of the International Code of Zoological Nomenclature (ICZN 1999): All other things being equal, preference should be given to the nominal species cited first in the work, page or line (“position precedence”).] [Preoccupied by Nematoscelis filipes Wollaston, 1867 (Coleoptera Staphylinidae).] Type species. Nematoscelis megalops G.O. Sars, 1883, automatic. Etymology. Hansarsia nom. nov. to honour the contributions of Norwegian biologist Georg Ossian Sars and Danish biologist Hans Jacob Hansen. It is to be treated as feminine in gender. Composition. Hansarsia atlantica (Hansen, 1916) comb. nov. Hansarsia difficilis (Hansen, 1911) comb. nov. Hansarsia gracilis (Hansen, 1910) comb. nov. Hansarsia lobata (Hansen, 1916) comb. nov. Hansarsia megalops (G.O. Sars, 1883) comb. nov. Hansarsia microps (G.O. Sars, 1883) comb. nov. Hansarsia tenella (G.O. Sars, 1883) comb. nov. Notes on Nematoscelis filipes Wollaston, 1867 (Coleoptera: Staphylinidae) In the original description, Wollaston (1867) noted the affinity of N. filipes with the genus Oligota Mannerheim, 1830 based on the ten-segmented antennae and four-segmented tarsi. He noted that N. filipes was different from Oligota due to it having a longer apical [maxillary?] palpomere, shorter ligula and longer legs, among other characters. Based on examination of photos of the type series housed at the Natural History Museum, London (Fig. 1), N. filipes does indeed have ten-segmented antennae and four-segmented tarsi. These characters support its placement in the tribe Hypocyphtini Laporte de Castelnau, 1835 (Ashe 2001; Orlov et al. 2021). All specimens of N. filipes were collected by Mr. Gray. In all cases, specimens were collected by “beating the plants of an eatable Bean (the Lablabia vulgaris —known locally under the name of “Feij„o) in cultivated spots of intermediate altitudes” (Wollaston 1867: 232). Such a method of collecting N. filipes certainly agrees with the biology of some other Hypocyphtini, which are active predators of mites on foliage. Whether N. filipes deserves its status as a monotypic genus or may in fact be congeneric with some other described genus of Hypocyphtini remains to be explored, but this issue has no impact on the homonymy.Published as part of Shaw, Josh Jenkins, 2023, Hansarsia nom. nov., a replacement name for Nematoscelis G. O. Sars, 1883 (Crustacea: Euphausiidae), a junior homonym of Nematoscelis Wollaston, 1867 (Coleoptera: Staphylinidae: Aleocharinae), pp. 84-86 in Zootaxa 5256 (1) on pages 84-85, DOI: 10.11646/zootaxa.5256.1.6, http://zenodo.org/record/774539
Deleaster wilhelmensis Shaw & Eos & Llc & Cs & Cs 2018, sp. nov.
Deleaster wilhelmensis sp. nov. Type locality. Papua New Guinea, Eastern Highlands, Mt. Wilhelm, Pengal River, 9200 ft. [ca. 2760 m], [approximate coordinates: 5 ° 47ʹS 145 ° 05ʹE. Type material. HOLOTYPE: ♀: “ New Guinea, Eastern Highlands, Mt. Wilhelm.Pengal River, 9200 ft., 16.5- 9.6.1963. W.W.Brandt // Deleaster det. A.F. Newton 1987 // ANIC Specimen [green label] // HOLOTYPE Deleaster wilhelmensis sp. nov. Jenkins Shaw des. 2017”. The holotype is deposited in the Australian National Insect Collection (ANIC). Description. Measurements (all in millimeters): HW = 1.41; TW = 1.13; PW = 1.33; SW = 2.26; AW = 2.43; Hl = 1.03; el = 0.55; Tl = 0.27; Pl = 1.13; sl = 2.55; sC = 2.23; FB = 4.9; Bl = 7.6. Habitus as in Fig. 1A. Overall dark brown with head appearing slightly darker, almost black. Antennae dark brown. Legs light brown; tarsi slightly paler than tibiae and femora. Head excluding clypeus transverse; clypeus strongly produced with two pairs of small punctures situated laterally. Head and clypeus with linear microsculpture. Vertex with two punctate impressions extending from posterior edge of head to inner margin of eyes. Labrum weakly emarginate. Frontoclypeal (epistomal) suture distinct (Fig. 1B: fs). Temples with weak setiferous punctures. Neck with distinct transverse microsculpture. Antennae with first antennomere distinctly thickened compared to subsequent antennomeres; third antennomere as long as first antennomere. Antennal insertions almost obscured in dorsal view. All antennomeres with both macro and micro setae. Apical area of antennomeres six to ten with short, stout white setae (referred to as ‘ciliae’ by HAYASHI (1984)). Pronotum widest anteriorly, weakly narrowed posteriorly; front angles forming an evenly rounded right angle; hind angles evenly rounded. Dorsal surface with distinct linear microsculpture and weak punctures throughout, the distance between the punctures equal to the diameter of two or three punctures combined. Pair of larger punctures present towards anterior margin of pronotum. Laterobasal areas of pronotum each with impression extending halfway along edge of pronotum, with some micro setae at the posterior end of each impression. Central basal area with distinct transverse impression. Hypomeron large; covered with microsculpture (Fig. 1C: hy). Apex of basisternum acute. Scutellum slightly paler than elytra; with rugose microsculpture and pale pubescence. Elytra widest at apical third; confusely but weakly punctured with short pale setae; weak rugose microsculpture present between elytral punctures. Hind wings apparently present (not studied), folded under elytra. Legs rather long and slender; fifth tarsomere as long as one to four combined. Claws half the length of fifth protarsomere. Abdomen broadest at tergite IV. Tergites covered in short pale setae; weak transverse microsculpture present except at medioapical area of each tergite. Tergites III to VI with widely separated pair of long golden macro setae situated close to posterior margin; tergite VII with two pairs of widely seperated long golden macro setae situated close to posterior margin. Tergite VIII with middle of apical margin deeply incised, forming pair of small teeth, each bordered by a long lobe (Fig. 1D). Differential diagnosis. Aside from being a geographic outlier within the genus (Fig. 2), D. wilhelmensis may be distinguished from congeners based on the following combination of characters: overall dark brown colouration; pronotum without pubescence; distinctly wide and rounded lateral contour in apical third of elytra; abdomen widest at tergite III; tergite VIII with middle of apical margin deeply incised, forming pair of small teeth, each bordered by a long lobe (Fig. 1D). CUCCODORO & MAK- RANCZY (2013) were the first to mention and illustrate the structure of tergite VIII in the genus and in the Afrotropical Deleaster they noted the shape was similar in both sexes. Deleaster wilhelmensis can be distinguished from congeners based on the following: from D. dichrous (Gravenhorst, 1802) and D. trimaculatus Fall, 1910 by the dark colouration of the elytra; from D. pectinatus Fauvel, 1882, D. gibbosus Cuccodoro & Makranczy, 2013 and D. negus Cuccodoro & Makranczy, 2013 by the shape of tergite VIII (middle of apical margin deeply incised, forming pair of small teeth, each bordered by a long lobe); from D. yokoyamai Adachi, 1935 by the presence of microsculpture on the head, longer second antennomere compared to third and lack of pubescence on the pronotum; from D. bactrianus Semenow, 1900 by the longer second antennomere compared to third, front angles or pronotum evenly rounded (obtuse in D. bactrianus) and abdomen widest at tergite IV (tergite V in D. bactrianus); from D. taiwanensis Hayashi, 1984 by the abdomen widest at tergite IV (tergite V in D. taiwanensis) and shape of tergite VIII (described as ‘shallowly emarginate’ for D. taiwanensis by HAYASHI (1984)). Etymology. The species name refers to the fact that the only known specimen of D. wilhelmensis was collected from Mount Wilhelm, Papua New Guinea. It is an adjective derived from the mountain’s name. Distribution and bionomics. The single known specimen was collected from Mount Wilhelm at about 2760 m with the locality given as Pengal River (Fig 2). According to BISHOP MUSEUM (1966) and SIBATANI (1974), Pengal River as referred to in Brandt’s collection is ‘Pengal R (upper), 5 ° 47’ 145 ° 05’, 2760 m’ and is apparently on the east side of Mount Wilhelm and the northern slope of the Bismarck Range, upstream of the Imbrum River. Although the precise habitat or method of collecting for this specimen is unknown, most likely it is a riparian. It is notable that all known species of Deleaster are confined to wet habitats (e.g. stream banks, leaf litter, caves, under stones) and often in mountainous regions (GREBENNIKOV 2002).Published as part of Shaw, Josh Jenkins, 2018, Significant range expansion for the rove beetle genus Deleaster, based on a new species from Papua New Guinea (Coleoptera: Staphylinidae: Oxytelinae), pp. 21-24 in Acta Entomologica Musei Nationalis Pragae 58 (1) on pages 22-23, DOI: 10.2478/aemnp-2018-0004, http://zenodo.org/record/367523
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Significant range expansion for the rove beetle genus <em>Deleaster</em>, based on a new species from Papua New Guinea (Coleoptera: Staphylinidae: Oxytelinae)
Deleaster wilhelmensis sp. nov (Staphylinidae: Oxytelinae: Deleastrini) is described and illustrated from Mount Wilhelm, Papua New Guinea. It is the first species of Deleaster Erichson, 1839 recorded from Oceania and represents a significant expansion of the known range of the genus.</p
The rove beetle <em>philonthus antipodum</em> fauvel, 1877:A junior synonym of philonthus umbratilis (Gravenhorst, 1802) (Coleoptera: Staphylinidae: Staphylininae)
Philonthus antipodum Fauvel, 1877 is placed in synonymy with Philonthus umbratilis (Gravenhorst, 1802), a rove beetle from the Palaearctic adventive in Australia. To fix the identity of Philonthus antipodum Fauvel, 1877, a lectotype is designated.</p
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